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CONTRIBUTIONS FROM THE CUSHMAN

LABORATORY FOR FORAMINIFERAL RESEARCH

127 NEW FORAMINIFERA FROM THE UPPER JACKSON EOCENE OF THE SOUTHEASTERN COASTAL PLAIN

REGION OF THE UNITED STATES

By JOSEPH A CUSHMAN

In order that the descriptions and figures of these new species and varieties from the Upper Eocene Jackson of the Coastal Plain region of the United States may be available for workers permission has been granted for their publication The manushyscript has been prepared for a considerable time and publication will probably be still further delayed There have been a number of papers published on the foraminifera of the Jackson From Texas (Cushman and Applin Bull Amer Assoc Petro Geol vol 10 1926 pp 154-189 pIs 5-10) numerous species have been pubshylished From Louisiana (Howe and Wallace Louisiana Geol Bull No2 1932 pp 1-118 pIs 1-15 2 text-figs) a number of new species and varieties together with figures of other previousshyly described species have been published There are also numer~ ous short papers by Cushman and Ellisor and by Cushman in the Contributions from the Cushman Laboratory for Foraminiferal Research giving distributions and figures of numerous new species and varieties from the Jackson of Texas Mississippi Alabama and Florida This present paper will add to these species new ones from Mississippi Alabama Florida and North and South Carolina

Many of these species have a wide range in the American Upper Eocene and will be recognized by workers not only from outcrop samples but also from well borings which penetrate the Jackson of the general Coastal Plain region of the United States Only the descriptions and short notes are given here The more

bull Published by lermiasion of the Director of the U S G~ololli~11 Survey

2 CONTRIBUTIONS FROM THE CUSHMAN LABORATORY

extended detailed distribution will appear with the publication of the large paper of which these descriptions are a part

GAUDRYINA SUBQUADRATA Cushman n sp (Pl 1 figs 1 ac)

Test elongate slender the biserial portion compressed concave at the broader faces margins rounded truncate early triserial portion greatly reduced chambers of the biserial portion distinct 7 or 8 pairs sutures strongly oblique slightly depressed wall arenaceous exterior somewhat roughened aperture at the base of the last-formed chamber at the inner edge small Length 100 mm breadth 030 mm thickness 020 mm

Holotype (U S N M No 371526) from Cooper marl bluff on Biggin Creek Berkeley Co S C

This is a very elongate tapering species the triserial portion being greatly reduced The broader faces are very distinctly concave

MILIOLA JACKSONENSIS Cuahman n sP (PI 1 figs 2 8)

Test elongate elliptical or fusiform large quinqueloculine chambers numerous distinct the periphery angled sutures disshytinct wall ornamented with numerous oblique longitudinal costae with a single row occasionally a double one of coarse rounded pits between each two costae aperture at the end of a very short neck cribrate in the adult in the young with a large number of fine teeth projecting in from the edge Length 200 mm diameter 055 mm

Holotype (U S N M No 371527) from Jackson formation Jackson Miss

The species occurs in some numbers at Jackson Miss in the Upper Eocene It differs from M saxorum which also occurs at Jackson in the shape of the chambers and the character of the ornamentation In some respects it resembles the Quinquelocushylina parisiensis of dOrbigny as figured by Terquem but Fornshyasinis tracings of dOrbignys original plates show only the longishytudinal costae with no signs of punctae

MASSILINA JACKSONENSIS Cushman n sp (Pl 1 fig 4)

Test broadly oval or elliptical much compressed periphery subacute apertural end slightly projecting early chambers quinqueloculine later ones in a single plane and Spiroloculiruz like sutures distinct slightly depressed wall beautifully ornashymented by a series of punctae nearly circular arranged in longishy

3 FOR FORAMINIFERAL RESEARCH

tudinal curved rows parallel to the sutures and also in somewhat definite curved diagonal lines across the chamber apertural end with a short neck but without a distinct lip Length 140 mm breadth 100 mm thickness 020 mm

Holotype (U S N M No 371529) from Jackson formation Garlands Creek Miss

The types of this species are from the Upper Eocene Jackson Miss where it is common The early stages are occasionally found represented by young individuals and strongly resemble Quinqueloculina They remotely resemble some of the forms reshyferred by authors to Q prisca dQrbigny but they are sharply angled and the numerous specimens show that they are only the young stages of the larger MG8silina

MASSILINA JACKSONENSIS Cushman n sp var PUNCTATO-COSTATA Cushman n var (PI 1 figs 5 6)

Variety differing from the typical in the ornamentation of the wall of the test which has a series of longitudinal curved costae between the rows of punctae those near the periphery more strongly developed than nearer the inner portion of the chamber the neck is more strongly developed than in the typical

Holotype of variety (U S N M No 371530) from Upper Eocene Jackson Miss

ARTICULINA TERQUEMI Cushman nbullbullp (PI 1 figs 1 a-e)

Test small somewhat larger than broad compressed periphery broadly rounded chambers indistinct except the last two nearly involute inflated ornamented by numerous rounded longitudinal costae in general parallel to the periphery often somewhat unshyeven apertural end with a distinct lip sutures indistinct wall matte aperture circular with a very distinct slightly flaring lip without a definite tooth Length 025 mm breadth 013 mm thickness 007 mm


This species somewhat resembles one of the figures given by Terquem as Articulina gibbo8ula dOrbigny (Mem Soc Geol France ser 3 vol 2 1882 pI 15 [23] fig 26) from the Eocene of the Paris Basin It is not the same as dOrbignys species of the Miocene of the Vienna Basin and Terquema fig 25 is much more like dOrbignys species On the same plate fig 24 referred by Terquem to Articulina nitida dOrbigny is somewhat similar


but not identical with our form There is a figure given by Sower~ by as Tritoculina striata Brown (Foram Colne Tidal River 1856 pl figs 5 6) which also somewhat resembles our speci~ mens but the costae are not the same and the species is probably a Ma8silina Our species is somewhat similar to Articulina byr~ mensis Cushman but that species has a very distinctive shape as well as a very different ornamentation

bullROBULUS GUTTICOSTATUS (Giimbel) var YAZOOENSIS Cushman n var (PI I fig 8)

Variety differing from the typical in having a very few beads on the proximal end of the chambers the distal portion uno rnashymented and depressed in the adult with the last few sutures en~ tirely without ornamentation and depressed throughout the keel wanting and the periphery of each chamber nearly straight each slightly projecting beyond its immediate predecessor at the angle Diameter 075 mm

Holotype of variety (U S N M No 371532) from Jackson formation 1112 miles southeast of Melvin Ala

ROBULUS ARCUATO-STRIATUS (Hantken) var CAROLINIANUS Cushman n var (Pl 1 figs 9 a b)

Test close coiled throughout strongly umbonate periphery keeled with a fairly wide thin carina chambers very distinct 8 or 9 in the las~formed coil of uniform shape and increasing very slightly in size as added sutures distinct strongly imbate slightshyly raised very strongly curved ending in the middle in a clear umbo wall smooth except for the slightly raised sutures apershyture slightly protruding at the peripheral angle radiate apershytural face slightly concave the sides thickened Diameter 130 rom

Holotype of variety (U S N M No 371548) from Ocala limeshystone 3 miles north of Grove Hill Ala

SARACENARIA ARCUATA (dOrbillny) var HANTKENI Cushman n var (Pl I figs 11 12)

Cristella1ia arcuata HANTKEN (not DORBIGNY) A magy kir fiildt into evkiinyve vol 4 1875 (1876) p 45 pI 5 figs 5 a-c 6 Mitth Jahrb ungar geoI Anstalt vol 4 1875 (1881) p 53 pl 5 figs 5 ~C 6

Test longer than broad periphery subacute apertural face truncate test triangular in transverse section early portion someshywhat close coiled in the first few chambers soon becoming unshycoiled chambers comparatively few usually only 7-8 distinct

bull


but not inflated angles subacute almost keeled in the last-formed chambers sutures distinct very slightly if at all depressed wall smooth and polished aperture peripheral radiate slightly proshyjecting Length up to 130 mm breadth of final chamber 060 mm

Holotype of variety (U S N M No 371633) from Cooper marl Ingleside S C

This is very similar to if not identical with the variety figured by Hantken from the Eocene of Hungary and referred to Cristellaria arcuata dOrbigny It is usually much more acute than the Miocene species of the Vienna Basin and the apertural face is much more flattened The Eocene variety is also straightshyer the uncoiled portion being much less strongly curved on both faces but especially on the inner concave margin

~

NODOSARIA LATEJUGATA Gumbel var CAROLlNENSIS Cushman n var (PI 1 fig 16)

Variety differing from the typical in having the chambers more distinct and more inflated the costae similar but double the numshyber in the typical and the whole test larger

Holotype of variety (U S N M No 371640) from Cooper marl Cooper River S C

In the Carolina material this variety seems to be more charshyacteristic than the typical form

PLANULARIA COOPERENSIS Cushman n p (PI 1 figs 10 a b)

Test large strongly compressed periphery rounded not keeled 15 or more chambers in the final coil of nearly uniform shape increasing gradually in size as added sutures fairly distinct very slightly limbate slightly curved later ones very slightly deshypressed earlier ones flush with the surface wall smooth matte Length 400 mm breadth 300 mm thickness 040 mm

Holotype (U S N M No 371634) from Cooper marl Highshyway No 17 mile west of Old Biggin Church Berkeley Co S C

This is a fine large species of the general form usually assigned to Cristellaria cassis (Fichtel and Moll) which is however a very different species The Eocene species has no keel and the wall is entirely smooth

IIlARGINULINA COOPERI Cashman n p (PI 1 lig 18)

Test of medium size the earlier chambers close coiled later ones becoming uncoiled periphery broadly rounded without a keel but with 2 or 8 short stout spines at the curve of the test one

6 CONTRIBUTIONS FlOM THE CUSHMAN LABORATORY

FIGs 1 a-c

FIGS 23

FIG 4 FIGs 56

FIGs 7 a-c

FIG 8

FIGS 9 a b

FIGs 10 a b

FIGS 11 12

FIG 13 FIGS 14 15

FIG 16

FrG 17 FIGS 18 19

FIG 20 FIG 21 FIG 22

FIGs 23 ar-c

FIGs 24 a b

FIG 25 FIG 26 FIG 27 FIG 28 FIG 29 FIG 30 FIGs 31 a b

FIGS 82 a b

EXPLANATION OF PLATE 1

Gaudyina subquadrata Cushman n sp X 35 a front view b side view c apertural view Miliola jacksonensis Cushman n sp X 20 Fig 2 Holoshytype Fig 3 Paratype Massilina jacksonensis Cushman n sp X 20 Massilina jackBoncnsis Cushman n sp var p1tnctato-coBtata Cushman n var X 20 Fig 5 Paratype Fig 6 Holotype Articulina terquemi Cushman n sp X 50 a b opposite sides 0 apertural view Robulus gutt-icostatltS (Gumbel) var yazooensis Cushman n var X 25 Robulus arcuato-striatus (Hantken) var carotinjanull Cushshyman n var X 20 a side view b peripheral view Planularia coopeYensis Cushman n sp X 10 a side view b peripheral view Saracenaria arcuata (dOrbigny) var hantkeni Cushman n var X 30 Fig 11 Paratype Fig 12 Holotype Mmuimdina cooperi Cushman n sp X 20 Marginu1ina cooperensis Cushman n sp X 25 Fig 14 Paratype Megalospheric form Fig 15 Holotype Microshyspheric form Nodosaria latejugata Gumbel var carolinensis Cushman n yar X 20 Dentalina cooperensis Cushman n sp X 85 Dentalina haritkeni Cushman n sp X 85 Fig 18 Parashy

type Fig 19 Holotype lt Dentalina halkymdi Cushman n sp X 35 Nodosaria cookei Cushman n sp X 35 Lagena (1bignyana (Seguenza) var 8emiconcentrica Cushshyman n var X 85 N onil)nella jacksonensis Cushman n sp X 45 a dorsal view b ventral view c apertural view Spiroplectoides curta Cushman n sp X 100 a side view b peripheral view Reu88ia eocena Cushman n sp X 35 Plectofrondicnaria cookei Cushman n sp X 85 Nodogenerina cooperensis Cushman n sp X 45 Uvigerina glabrans Cushman n sp X 35 Uvigerina yazooensis Cushman n Bp X 35 A ngnogerina ocalana Cushman n sp X 35 Virgulina recta Cushman n sp X 45 a front view b apertural view Bulimina cooperensis Cushman n sp X 45 a side view b apertural view

Figures 2-6 11 12 and 16 from photographs

Other figures drawn by Margaret S Moore

CONTR I B CUSHMAN LAB F ORAM RESEARCH VOL 9 PT 1 PL 1

L


to a chamber chambers distinct about six in a volution in the earlier part not inflated entirely involute in the later uncoile4 part with more inflated chambers sutures very distinct not de~ pressed slightly limbate aperture peripheral throughout rather large radiate Length 150 mm

Holotype (U S N M No 371536) from Cooper marl Cooper River S C

This is a very distinct species in the American Eocene It pershyhaps most closely resembles M hauerina (dOrbigny) and M alazanensis (Cushman) but is distinct in many of its characters

MARGINULINA COOPERENSIS Cushman nbullbullp (PI 1 figs 14 15)

Test elongate tapering the early portion much compressed later portion circular in transverse section chambers distinct earlier ones forming part of a coil last 3 or 4 subglobular sutures somewhat hidden by the ornamentation which is composed of longitudinal costae numerous about 15-18 on the visible half of the last chamber becoming somewhat produced at the proximal margin of each chamber aperture terminal with a definite cylindrical neck and thickened lip Length 140 mm maximum breadth 035 mm


DENTALINA COOPERENSIS Cushman n p (Pl 1 fig 17)

Test elongate slightly compressed very slightly tapering gently curved periphery only slightly sinuate apical end pointed or with a single small spine chambers few usually about ten in the adult specimen often indistinct sutures fairly distinct oblique wall smooth matte aperture at the periphery of the chamber slightly projecting Length 200-250 mm breadth 030 mm


This species is allied to some of the forms referred to Nodosaria communis dOrbigny but in the Upper Eocene of the Coastal Plain region seems to be distinct The margins are nearly entire only slightly sinuous occasionally near the apertural end the sutures are distinctly oblique and the number of chambers usually not more than ten

FOR FORAMINIFERAL RESEARCH 9

DENTALINA HANTKENI CushmJUl n 81) (PI 1 figs 18 19)

Test elongate arcuate somewhat compressed composed of a few chambers initial end rounded chambers distinct increasing in length as added outer curve sinuate inner curve nearly unishyform sutures fairly distinct somewhat oblique aperture near the inner curve with a slightly produced neck Length 125 mm greatest diameter 015 mm

Holotype (U S N M No 371539) from Ocala limestone 312 miles northeast of Brooklyn Ala

Hantkens figure and description of Dentalina biidenli~ are somewhat similar to this species from the Upper Eocene

DENTAJINA HALKYARDI Cushman n gp (PI 1 fig 20)

Nodosaria (Dentalina) SptnulOBa HALKYARD (not MONTAGU) Mem Proc Manchester Lit Philos Soc vol 621917-1918 (1919) p 79 bull

Test elongate tapering initial end rounded composed of a few chambers seven in the type specimen globular the earlier ones more overlapping than the later ones sutures distinct and deshypressed wall ornamented in the earliest chambers by longitudinal costae about 7 or 8 visible on each side of the chambers the proximal end of each costa somewhat projecting in the nextshyformed chambers the costae are broken into short bits which beshycome spinose at the proximal end and in the last-formed chamshybers the ornamentation consists of a series of fine almost hispid spines in longitudinal lines apertural end with a cylindrical neck and a thickened lip the neck with annular corrugations and the outer border with a series of teeth Length 140 mm or more breadth of last-formed chamber 030-040 mm

Holotype from Jackson formation Cooper River S C From the description given by Halkyard in the reference above

this is the same as his material from the Upper Eocene Blue marl of Cote des Basques Biarritz His description is as follows The ai-rIier chambers of the shells are invariably ornamented with longitudinal costae which later are interrupted or broken up into short lengths and later still into spines or prickles pointing backshywards The prickles first make their appearance on the basal portion of each segment

NODOSARIA COOKEI Cushman n gp (PI 1 fig 21)

Test small composed of few chambers well separated from one another chambers very distinct slightly longer than wide circushylar in diameter sutures indistinct wall covered by very fine


hispid spines both on the body of the chambers and on the conshynections aperture at the end of an elongate cylindrical neck Length 075 mm diameter 025 mm

Holotype (D S N M No 371541) from Ocala limestone Covshyington Co Ala

This seems to be identical with a species figured without name by von Schlicht (Foram Pietzpuhl 1870 pI 6 fig 28) and apparshyently not named by Reuss

The newly added chamber is set onto the neck of the preceding one near the apertural end and a long narrow connection is thus left between adjacent chambers The surface ornamentation is very delicate It resembles somewhat N conspu1cata Reuss but has a finer ornamentation and the chambers are more remote

LAGENA ORBIGNYANA (Seguenza) var SEMICONCENTRICA Cushman n val (PI 1 fig 22)

This variety differs from var concentrica Sidebottom in having the central part of the faces of the test without ornamentation There are numerous concentric ridges at the sides but they are slightly interrupted at the base and are wanting in the center Length 045 mm

Holotype of variety (D S N M No 371542) from Castle Hayne marl Wilmington N C

NONIONELLA JACKSONENSIS Cushman n p (PI 1 figs 23 ac)

Test longer than broad periphery rounded ventral side inshyvolute and the chambers extending over the umbilical region dorsal side with the chambers ending at the umbilical region chambers distinct about eight in the final whorl becoming inshycreasingly elongate in the adult the inner end of the final chamshyber extending across the umbilical area nearly to the periphery on the ventral side inflated sutures distinct slightly if at all deshypressed wall smooth finely perforate aperture peripheral at the base of the apertural face low Length 080 mm breadth 050 mm thickness 030 mm

Holotype from Jackson formation at Claiborne Ala This species resembles some of the forms often assigned to

Nonionella turgida (Williamson) but the general shape is differshyent and the chambers of our species are broader andmiddot usually fewer

r


SPIROPLECTOIDES CURTA Cushman n p (Pl 1 figs 24 a b)

Test minute about three times as long as broad only slightly compressed in the later biserial portion early planispiral portion much compressed sides of the test nearly parallel chambers disshytinct slightly inflated usually four pairs in the biserial portion periphery in the later chambers broadly rounded sutures disshytinct very slightly if at all depressed nearly at right angles to the periphery wall distinctly perforate otherwise smooth apershyture narrow on the terminal face median Length 025 mm breadth 010 mm thickness 006 mm

Holotype (U S N M No 371543) from Cooper marl 1 mile south of Moncks Corner Berkeley Co S C

This is a very short stout species of this genus and evidently has a restricted range The planispiral early portion consists of about a single complete coil and the chambers show best when the specimen is wet

PLECTOFRONDICULARIA COOKEI Cushman n sp (Pl 1 fig 26)

l Test elongate tapering much compressed slightly keeled early

chambers biserial later ones uniserial chambers distinct especially the later ones earlier ones somewhat obscured by the ornamentation of the wall the uniserial ones extending back farther and farther at the sides as added sutures of the later porshytion distinct and slightly depressed somewhat limbate throughshyout wall of the earlier one-third or one-half ornamented by very distinct sharp longitudinal costae as many as fifteen in some specimens later portion of the test smooth aperture elliptical terminal Length up to 200 mm diameter 015-025 mm

Holotype from Cooper marl Cooper River S C This species resembles some of those described by Reuss and by

Karrer from the Miocene and Oligocene of Europe and the Philipshypines but is different from any of these It is often abundant in the Cooper marl but was not found in the other Jackson material examined The biserial chambers can only be observed when the specimen is wet or mounted in balsam or other transparent media Specimens sometimes become much wider than shown in the

figures

NODOGENERINA COOPERENSIS Cushman n p (Pl 1 fig 27)

Test small slender tapering final chamber usuaIly the largest but occasionally reduced somewhat in size uniserial throughout or the initial end showing traces of a triserial arrangement


chambers distinct subglobular or slightly pyriform the greatest diameter slightly below the middle sutures distinct much deshypressed wall very finely spinose aperture terminal circular with a very short neck and distinct but narrow lip Length 055 mm diameter 010 mm

Holotype from Cooper marl 1 mile south of Moncks Corner Berkeley Co S C

This is a small but distinctive species with a finely spinose surshyface The basal portion of the chamber is not cut under as dis-l tinctly as in some of the species of the genus and the neck is very short

BULIMINA COOPERENSIS Cushman nbullbullp (PI 1 figs 32 II b)

Test elongate tapering 2ly2-3 times as long as wide greatest breadth toward the apertural end chambers distinct infiatel considerably overlapping sutures deep distinct wall of the basal half of the chambers with plate-like costae ending in sharp points the initial end of the test often with a spine aperture elongate with a slightly depressed border Length 040-050 mm breadth 018-020 mm


This belongs in the general group of Bulimina inflata but is quite different from the typical form of that species in the Ptishyocene of Italy

VIRGULINA RECTA Cushman nbullbullp (PI I figs 31 a b)

VirguJina Sp() CUSHMAN Prof Paper 129-E U S Gool Survey 1922 p 92 pI 16 figs 2 3

Test elongate not much compressed tapering at the initial end sides for the remainder of the test nearly parallel apertural end broadly truncate chambers distinct high six biserial ones makshy J

ing up the larger part of the test sutures distinct slightly deshy I

pressed nearly at right angles to the periphery wall smooth aperture rather broad and large for the genus Length 055 mm breadth 015 mm thickness 010 mm


This is the same as the species figured without name from the Byram marl of Mississippi It resembles somewhat Virgulina mexicana Cole from tlie Gliayabal formation of Mexico but specishymens of that species examjned show a smaller much more delicate and more compressed species


REUSSIA EOCENA Cushman n sp (PI 1 fig 25)

Test short and broad pyramidal three-sided widest above the middle triangular in transverse section the sides in the adult deeply concave in the young stages nearly flat angles in the young sharp in the adult becoming thick and rounded surface smooth aperture at the inner border of the last-formed chamshyber Maximum length 080 mm

Holotype (U S N M No 371545) from Ocala limestone Pineshyola Fla

This species differs from the two common Vicksburg species Reussia rectimargo Cushman and R ltrpinulosa Reuss var glabrata Cushman in the short broad form and especially the much deeper concavity of the sides and the rounded angles It seems to be most abundant in the shallower water phase such as is represhysented by the Ocala liInestone In its very early stages the sides are flat and suggest Verneuilina spinulosa Reuss later it assumes the form of var glabrata Cushman but in its adult characters becomes very broad with deeply concave sides The early stages might easily be confused with the other forms mentioned but the adult is distinctive

UVIGERINA GLABRANS Cushman n fliP (PI 1 fig 28)

Test of medium size for the genus elongated subcylindrical or slightly fusiform greatest width usually below the middle periphery only very slightly lobulate chambers comparatively few inflated evenly rounded sutures very slightly depressed wall smooth or with faint traces of costae near the initial end finely perforate a pertural end truncate with a short delicate cylindrical neck and phialine lip the neck often broken Maxishymum length 015 mm width 030-035 mm

Holotype (U S N M No 371547) from Jackson formation 3112 miles southeast of Cullomburg Ala

This is the only smooth species of the Coastal Plain Upper Eocene It is related to U cocoaensiltr and is usually found assoshyciated with that species but fewer in number It is also related to certain of the living species of the western Atlantic usually referred to U canariensis dOrbigny

UVIGERINA YAZOOENSIS Cushman n sp (Pl 1 ftg 29)

Test small elongate fusiform greatest width toward the apershytural end periphery strongly lobulate chambers numerous inshyflated sutures strongly depressed the basal portion of the chamshy


ber overhanging the preceding ones wall ornamented with sharp longitudinal costae limited to the individual chamber those of preceding and succeeding chambers not usually in the same line the outer edge of the costae often serrate about 22-26 costae in the complete circumference in the widest region wall rather coarsely perforate apertural end with a short narrow cylindrical neck and phialine lip Maximum length 070 mm width 028 mm

Holotype (U S N M No 371549) from Jackson formation mile southeast of Melvin Ala

This species is distinct from the others of the Upper Eocene of the Coastal Plain in the sharp costae limited to the individual chambers and the very deeply indented sutural regions making a very lobulate periphery There is apparently no tendency for the costae to become obsolete in the last-formed chambers Uvigerina yazooensis is apparently the direct ancestral form of some of the species now living in the eastern Atlantic especially U peregrina Cushman

ANGULOGERINA OCJtLANA Cushman n p (Pl 1 fig 30)

Test small for the genus elongated fusiform periphery very slightly lobulate somewhat triangular in section the angles rounded especially in the early portion wall ornamented with numerous very fine slightly raised costae the outer edge broken into a finely serrate line apertural end with the chambers someshywhat loosely arranged the costae less prominent or nearly wantshying the chambers more definitely triangular angles sharper j apertural end extended into a short neck with a slight lip Maxishymum length 035 mm width 015 mm

Holotype (U S N M No 371550) from Upper Eocene Spring Mill Creek Jenkins Co Ga

This is probably the ancestral form of A byramensis Cushman so abundant in the Byram marl of the Lower Oligocene and these are again ancestral forms of the Miocene and living A occidentalis Cushman of the shallow water of the Florida region

DlSCORBIS GLOBULO-SPINOSA Cushman n sp (Pl 2 fig bull 1 a-c)

Test comparatively small plano-convex the ventral side flatshytened or even slightly concave dorsal side unevenly convex perishyphery with a blunt keel chambers distinct especially on the ventral side with usually five chambers in the last-formed whorl of uniform shape increasing slightly in size as addea sutures


distinct on the dorsal side in the earlier chambers nearly radial only slightly curved becoming more and more oblique as chamshybers are added not depressed on the ventral side nearly radial only slightly curved toward the periphery slightly depressed wall finely but distinctly perforate the ventral side smooth dorsal side with a series of spines one or more from each chamber aperture a curved arched opening on the ventral side of the last-formed chamber midway between the periphery and the umshybilical region Diameter 030 mm thickness 012 mm

Holotype (U S N M No 371553) from Upper Eocene Jackshyson Miss

This is a very distinctly ornamented small species which is characteristic of this Upper Eocene as developed at Jackson and other localities of equivalent age

DISCORBIS OCALANA Cushman n 8p (Pl 2 figs I a-e)

Test biconvex dorsal side slightly more convex than the ventral which is slightly umbilicate periphery rounded chamshybers usually five in the adult whorl those of the last whorl disshytinct earlier ones obscure gradually increasing in size as added slightly inflated sutures gently curved dorsally ventrally nearly radial slightly depressed on both sides wall thick smooth apershyture ventral toward the umbilicus Diameter 060 mm height 020mm

Holotype (U S N M_ No 371555) from Ocala limestone Marishyanna Florida

This is a thick-walled species which occurs in the Ocala limeshystone but is not usually well preserved as is the case with numerous other species of this formation

DISCORBIS ASSl1LATA Cushman nbullbullp (Pl 2 figs 2 a-c)

Test very much compressed plano-convex ventral side flat or concave dorsal side very slightly convex periphery subacute slightly keeled chambers usually six in the final whorl of unishyform shape but increasing rather rapidly in size as added sutures distinct limbate about evenly curved on the dorsal and ventral sides the later one or two on the ventral side with a lip-like proshyjection wall smooth finely perforate aperture ventral toward the umbilicus beneath a slightly overhanging lip Diameter 050 mm height 010 mm


Holotype (U S N M No 371666) from Ocala limestone 2 miles south of Perry Ga

This is a very thin scale-like species with distinctly limbate sutures which are evenly curved on the two sides

DlSCORBIS ALABAMENSJS Cashman n sp (Pl 2 figs II ac)

Test small unequally biconvex ventral side slightly convex dorsal side more strongly so periphery rounded chambers disshytinct usually about six in the final whorl slightly inflated of unishyform shape increasing very slightly in size as added on the ventral side with the inner end of the chambers lobed sutures distinct slightly depressed gently curved wall smooth aperture near the umbilicus with a slight overhanging lip Diameter 025 mm height 006 mm

Holotype (U S N M No 371667) from Ocala limestone Beck Ala

This is a very small but distinct species especially when seen from the ventral side

DISCORBIS ALVEATA Cashman n sp (PI 2 figs 4 a-c)

Test plano-convex dorsal side raised in a low spire ventral side nearly fiat periphery acute and slightly keeled chambers disshytinct about five in the adult whorl of uniform shape increasing gradually in size as added the ventral side with the inner portion broken up into a series of channels radiating from the umbilicus sutures distinct slightly limbate on the dorsal side strongly curved flush with the surface on the ventral side nearly radial slightly curved and distinctly depressed wall smooth except for the channelling of the umbilical area on the ventral side apershyture narrow at the umbilical end of the chamber Diameter 035 mm height 012 mm


This is a small distinctive species of few chambers one of the main characteristics being the channelling of the ventral side

DISCORBIS BULLA Cashman n sp (PI 2 figs pound a-c)

Test much compressed except at the umbo which is distinctly elevated ventral side convex but umbilicate periphery acute chambers few much elongate narrow strongly curved three completing a whorl the last-formed one making up more than half the periphery sutures distinct very strongly curved on the


dorsal side somewhat limbate ventrally slightly depressed curved wall on the dorsal side smooth ventrally with traces Of radial markings aperture opening into the umbilical area Diameter 050-060 mm height 015-018 mm

Holotype (U S N M No 371554) from Ocala limestone Pea River at Geneva Ala

This is a peculiarly shaped species with a very prominent umbo convex ventral side and very longcurved chambers It belongs in the group usually assigned to Discorbis orbicularis (Terquem)

EPONIDES OCALANA Cushman n sp (PI 2 figs 7 a-c)

Test comparatively large strongly plano-convex periphery rounded dorsal side fiat ventral side very convex chambers 5 or 6 in the last-formed whorl distinct sutures on the dorsal side curved limbate raised above the surface and often connecting with a raised ridge about the periphery on the ventral side slightly depressed very slightly curved ending in the rather large umbilical cavity wall thick matte aperture a short semi elliptical opening near the umbilical end of the ventral margin of the chamber Length 100-125 mm breadth 075-085 mm thickness 050-060 mm bull Holotype (U S N M No 371561) from Ocala limestone Covshyington Co Ala

EPONIDES MINIMA Cushman nbullp (PI 2 fig bull 8 a-c)

Test small trochoid spine low periphery bluntly keeled lobushylated chambers typically 6-7 in the adult whorl of uniform shape gradually increasing in size as added sutures on the dorsal side obliquely curved slightly limbate fiush with the surface ventrally somewhat curved slightly depressed wall smooth dorsally on the ventral side with papillae somewhat obscuring the sutures over the umbilical portion aperture ventral between the periphery and the umbilical area Diameter 025 mm height 012 mm

Holotype (U S N M No 371564) from Cooper marl Highway No 17 mile west of Old Biggin Church Berkeley Co S C

This is a very small species probably nearest to the Recent Eponides exigua (H B Brady) but differing from that species in the sutures of the dorsal side which ill Bradys species are strongly limbate especially the spiral suture and in the ventral side which is smooth in Bradys species and in ours is very markedly papillate


VALVULINERIA JACKSONENSIS CU8hman n 8p (Pl 2 figs 9 a-c)

Test biconvex compressed dorsal side with a very low spire ventrally convex toward the periphery but depressed at the umshybilicus which is somewhat finely papillate periphery rounded chambers distinct about eight in the adult whorl of uniform shape gradually increasing in size as added not inflated sutures distinct on the dorsal side gentry curved limbate not depressed ventrally nearly straight oblique very slightly depressed wall smooth aperture ventral beneath the umbilical lobe of the lastshyformed chamber Length 050 mm breadth 035 mm thickness 015 mm

Holotype (U S N M No 371559) from Ocala limestone 3l2 miles northeast of Brooklyn Ala

This is a characteristic species occurring at numerous stations


FIGs 1 a~c Discorbis globulo-spinosa Cushman n sr X 60 a dorsal view b ventral view c peripherid view

FIGs 2 a~(J Discorbis assulata Cushman n sp )( 4[ a dorsal view b ventral view c peripheral view

FIGs 3 a~c Di8corbis alabamensis Cushman n ClIgt X 45 a dorsa view b ventral view c peripheral view

FIGs 4 a-c Disc07bis alveata Cushman n sp X 43 a dorsal view b ventral view c peripheral view

FIGs 5 a-c Discorbi-s ocalana Cushman n sp X 45 a dorsal view b ventral view c peripheral view

FIGs 6 a-c Di8CO~bi8 bulla Cushman n sp X 45 a dorsal view b ventral view c peripheral view

FIGS 7 a-c Eponfdcs ocalana Cushman n sp X 23 a dorsal view b ventral view c peripheral view

FIGS 8 a-c Eponidc8 minima Cushman n sp X 45 a dorsal view b ventral view c peripheral view

FIGS 9 a-c Vahulineria jacksommsis Cushman nmiddot sp X 45 a dorsal view b ventral view c peripheral view

FIGS 10 a-c Lamarckirta jacksonensis Cushman n sp X 45 a dorsal view b ventral view c peripheral view

FIGS 11 a-c Cibicides cooperensi8 Cushman n sp X 35 a dorsal view b ventral view c periphcrmiddotal view

FIGS 12 a~c Planulina cocoaensis Cushman var cooperensis Cushman n var X 25 a dorsal view b ventral view c pcripheral view

FIGs 1314 Rupertia () floridana Cushman n sp X 10 Fig 13

Holotype side view Fig 14 Paratype apertural view Figures drawn by Margaret S Moore

CONTRIB CUSHMAN LAB lORAM RE S EARCH VOL 9 PT 1 PL 2


but the preservation of the material does not always allow certain determination

LAMARCKINA JACKSONENSIS Cushman n sp (PI 2 figs 10 ac)

Test about equally biconvex periphery acute slightly keeled chambers about five in the adult whorl rapidly increasing in size as added ventrally somewhat inflated sutures on the dorsal side slightly curved very oblique limbate and raised on the ventral side curved either flush with the surface or slightly depressed walls smooth except for the raised sutures on the dorsal side on the ventral side smooth and polished aperture a large opening in a deep re-entrant of the ventral side Length 045-050 mm breadth 035-040 mm thickness 015 mm

Holotype (U S N M No 371571) from Ocala limestone west blmk of Pea River Geneva Co Ala

This species is most closely related in the shape of its chambers to Lamarckina ocalana Cushman but differs from that species in the much more oblique sutures the fewer chambers and less conshyvex form

PLANULINA COCOAENSIS Cushman val COOPERENSIS Cushman n val (PI 2 fig bullbull 12 a-c)

Variety differing from the typical in the somewhat larger size smaller number of chambers typically eight and a much smoother less ornamented surface Diameter up to 150 mm

Holotype of variety (U S N M No 371565) from Cooper marl of bluff west side of Biggin Creek mile below Coastal Highshyway Berkeley Co S C

CIBICIDES COOPERENSIS Cushman n p (PI 2 figs 11 a-c)

Test coiled nearly planispiral in the adult unequally biconvex dorsal side slightly convex deeply umbilicate both sides almost completely involute periphery rounded more broadly so in the later portion very slightly lobulated chambers distinct 7 to 8 in the final whorl increasing rapidly in size as added on the dorsal side with a slight lip along the umbilical end sutures distinct somewhat limbate later ones slightly depressed earlier ones flush with the surface gently curved wall smooth finely but disshytinctly perforate aperture extending from the periphery over onto the dorsal side somewhat covered by the lip-like projection from the umbilical end of the chamber Length 080 mm breadth 060 mm thickness 035 mm


Holotype (U S N M No 371568) from Cooper marl pit on U S Highway No 17 about 1 mile south of Moncks Corner Berkeley Co S C

RUPERTIA (1) FLORIDANA Cushman n 81 (PI 2 figs 13 14)

Test attached elongate chambers in a loose spire in a column gradually increasing in diameter toward the upper apertural end chambers fairly distinct slightly inflated sutures fairly distinct slightly depressed wall smooth calcareous perforate aperture multiple in a slight depression of the outer end of the test Height 200 mm diameter 100 mm

Holotype (U S N M No 371569) from Ocala limestone of Alachua Fla

This has many of the characters of Rupertia but further specimens are needed so that sections may be made for comparishyson with some of the other Eocene forms of somewhat similar structure

128 A NEW SPECIES OF CLAVULINA FROM THE CRETACEOUS OF TEXAS

By JOSEPH A CUSHMAN

In the Journal of Paleontology for December 1932 Volume 6 page 333 plate 50 figures 1 a b I referred a species of Clavulina to Clavulina plummerae Sandidge In the original manuscript this species was described as new but while the proof was being corrected Dr Sandidges paper appeared and the resemblance beshytween the two seemed to be considerable and the new name was suppressed and the species referred to that of Dr Sandidge Through the kindness of Dr Sandidge topotype specimens of Clavulina plummerae have been examined and it is at once apshyparent that the two species are entirely distinct A considerable series also was received from Mrs Plummer which further conshyfirmed this fact Therefore the Texas species is here named


CLAVULINA DISJUNCTA Cushman n SII

Clavulina plummefae CUSHMAN (not SANDIDGE) Journ Pal vol 6 1932 p 333 pl 50 figs 1 a-b

Test with the early portion triserial and trilateral the sides slightly concave or flat angles subacute early chambers of the uniserial portion triangular in section but the later adult chamshybers becoming rounded and in side view with a definite tapering form both toward the base and toward the apertural end the greatest breadth being in the middle zone sutures distinct beshycoming more depressed in the adult chambers wall arenaceous with a considerable amount of cement smoothly finished apershyture terminal and rounded in the adult often with a distinct lip Length up to 150 mm or more breadth up to 050 mm

Holotype (Cushman Coll No 16299) from the type locality of the Annona chalk near Annona Texas

The type figure does not show as many uniserial chambers as often appear but it does show the characteristic shape of the last-formed chambers which have a very distinct ridge about the chamber and below the wall is distinctly cut under down to the suture at its base

This species occurs in typical form in the Upper Taylor in the Annona chalk Pecan Gap chalk and in the Upper Wolfe City sand

RECENT LITERATURE ON THE FORAMINIFERA

Below are given some of the more recent works on the foramshyinifera that have come to hand

Liebus A Die Fauna des deutschen Unterkarbons 3 Teil Die Foramshy

iniferen (Preuss Geol Landes Neue Folge Heft 141 1932 pp 133shy

175 pIs 9 10) Berlin There are 44 species and varieties described 2 new

Silvestri A Revisione di Foraminiferi Preterziarii del Sud-ouest di

Sumatra (Riv Ital Pal Anno XXXVIII 1932 pp 75-107 pIs Il-

IV) Pavia Deals particularly with Lojtusia and related forms


Silvestri Alfredo Sulle cosiddette Schwagerine della Valle del Sosio (Palermo)

(Boll Soc Geol Ital vol LI 1932 pp 253-264 pI VIII) Rome

Silvestri A Revisione di Orbitoline Nordamericane e Nuova Localita di

Chapmanine (Mem Pont Accad Sci Nuovi Lincei vol XVI 1932 pp

371-394 pIs I II) Rome Mostly based on Texas material

Bogdanowicz A and A Fedorov On Some Representatives of the Genus Elphidium of the Sarshy

matian Deposits of the Lower Kuban River Course (50 pages 1 plate 34 text figs)

Published in Russian with English summary 1932 Nine species and varieties 2 new

Protescu O La Microfaune des marnes a glauconie de la region Tintea

(Distr Prahova) et Iimportance stratigraphique de lespece Clavulina szaboi Hantk

(Publ Soc Nat Romania No 11 1932 pp 1-28 pIs 1-4) Bucarest

Numerous forms figured 2 new

Rij singe Carel Pieter Isaac van Description of Some Foraminifera of a Boring near Bunde

(Dutch South-Limburg) with a Discussion of the Theories of Trimorphism and Dimorphism in Foraminifera

(Octavo pp 1-112 pIs 1-4 4 text figs 1 chart 1932 Press of L Gerretsen Den Haag)

An exposition of the theory of trimorphism

Eisenack Alfred Neue Mikrofossilien des baltischen Silurs II (Foraminiferen

Hydrozoen Chitinozoen u a) (Paiaeontologische Zeitschrift vol 14 No4 Dec 1 1932

pp 257-277 pIs 11 12 text figs 1-13) Berlin Describes 2 new genera Pseudastrorkiza and Blastamshy

1nina Scheffen W

Zur Morphologie und Morphogenese der Lepidocyclinen (1 c pp 233-256 pIs 9 10 text figs 1-6) Berlin

bull


Alexander C 1 and J P Smith Foraminifera of the Genera Flabellammina and Frankeina

from the Cretaceous of Texas (Journ PaL vol 6 No4 Dec 1932 pp 299-311 pIs 45-47

text figs 1 2) Menasha Describe and figure 16 species 11 new

Thomas Norman L and Elmer M Rice Notes on the Annona Chalk

(I c pp 319-329) Menasha Numerous lists of foraminifera

Cushman Joseph A The Foraminifera of the Annona Chalk

(l c pp 330-345 pIs 50 51) Menasha Records 56 species many figured

Cushman Joseph Augustine A Bibliography of American Foraminifera

(Special Publication No3 Cushman Lab Foram Res 1932 pp 1-40) Sharon

Scheffen W Die Wertung der Bauelemente bei den Grossforaminiferen

(De Mijningenieur No 12 Dec 1932 pp 1-10 text figs 1-20) Bandoeng

Sandidge John R Additional Foraminifera from the Ripley Formation in

Alabama (Amer Midland Nat vol XIII No6 Nov 1932 pp 333shy

377 pIs XXXI-XXXIII) Notre Dame There are 43 forms figured 1 new

Cushman Joseph A and Gerald M Ponton Foraminifera of the Upper Middle and part of the Lower

Miocene of Florida (Bull 9 Florida State Geol Survey Dec 1932 pp 1-147

pIs 1-17) Tallahassee 208 species and varieties 20 new

Berry Willard The Foraminifera of the Heath Formation of Northwestern

Peru South America (Eclog geol Helv vol 25 No I 1932 pp 25-31 2 pIs)

Thirteen species described all as new Basle

J A C


extended detailed distribution will appear with the publication of the large paper of which these descriptions are a part

GAUDRYINA SUBQUADRATA Cushman n sp (Pl 1 figs 1 ac)

Test elongate slender the biserial portion compressed concave at the broader faces margins rounded truncate early triserial portion greatly reduced chambers of the biserial portion distinct 7 or 8 pairs sutures strongly oblique slightly depressed wall arenaceous exterior somewhat roughened aperture at the base of the last-formed chamber at the inner edge small Length 100 mm breadth 030 mm thickness 020 mm

Holotype (U S N M No 371526) from Cooper marl bluff on Biggin Creek Berkeley Co S C

This is a very elongate tapering species the triserial portion being greatly reduced The broader faces are very distinctly concave

MILIOLA JACKSONENSIS Cuahman n sP (PI 1 figs 2 8)

Test elongate elliptical or fusiform large quinqueloculine chambers numerous distinct the periphery angled sutures disshytinct wall ornamented with numerous oblique longitudinal costae with a single row occasionally a double one of coarse rounded pits between each two costae aperture at the end of a very short neck cribrate in the adult in the young with a large number of fine teeth projecting in from the edge Length 200 mm diameter 055 mm


The species occurs in some numbers at Jackson Miss in the Upper Eocene It differs from M saxorum which also occurs at Jackson in the shape of the chambers and the character of the ornamentation In some respects it resembles the Quinquelocushylina parisiensis of dOrbigny as figured by Terquem but Fornshyasinis tracings of dOrbignys original plates show only the longishytudinal costae with no signs of punctae

MASSILINA JACKSONENSIS Cushman n sp (Pl 1 fig 4)

Test broadly oval or elliptical much compressed periphery subacute apertural end slightly projecting early chambers quinqueloculine later ones in a single plane and Spiroloculiruz like sutures distinct slightly depressed wall beautifully ornashymented by a series of punctae nearly circular arranged in longishy























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FIGs 1 a-c

FIGS 23

FIG 4 FIGs 56

FIGs 7 a-c

FIG 8

FIGS 9 a b

FIGs 10 a b

FIGS 11 12

FIG 13 FIGS 14 15

FIG 16

FrG 17 FIGS 18 19


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FIGs 24 a b


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FIGS 23

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FIGs 7 a-c

FIG 8

FIGS 9 a b

FIGs 10 a b

FIGS 11 12

FIG 13 FIGS 14 15

FIG 16

FrG 17 FIGS 18 19


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FIGs 24 a b


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FIGS 23

FIG 4 FIGs 56

FIGs 7 a-c

FIG 8

FIGS 9 a b

FIGs 10 a b

FIGS 11 12

FIG 13 FIGS 14 15

FIG 16

FrG 17 FIGS 18 19


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FIGs 24 a b


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FIGS 23

FIG 4 FIGs 56

FIGs 7 a-c

FIG 8

FIGS 9 a b

FIGs 10 a b

FIGS 11 12

FIG 13 FIGS 14 15

FIG 16

FrG 17 FIGS 18 19


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contributions from the cushman laboratory for ... · mens, but the costae are not the same and the...

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